Dear ccl'ers I would like to know if boron PM3 parameters exists, and boron-magnesium parameters. Thanks -- ***************************************************************** SREP Laboratory Structure et reactivite des especes paramagnetiques Groupe de chimie theorique Universite de Provence, Marseille, France E-mail: ccl |-at-| carro.u-3mrs.fr Phone # : (ext) + 04-91-28-84-14 FAX # : (ext) + 04-91-98-85-12 *****************************************************************